11714921 has 4 divisors (see below), whose sum is σ = 12404052. Its totient is φ = 11025792.

The previous prime is 11714917. The next prime is 11714933. The reversal of 11714921 is 12941711.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 12941711 = 163 ⋅79397.

It can be written as a sum of positive squares in 2 ways, for example, as 10471696 + 1243225 = 3236^2 + 1115^2 .

It is not a de Polignac number, because 11714921 - 2² = 11714917 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11714951) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 344540 + ... + 344573.

It is an arithmetic number, because the mean of its divisors is an integer number (3101013).

Almost surely, 2^11714921 is an apocalyptic number.

It is an amenable number.

11714921 is a deficient number, since it is larger than the sum of its proper divisors (689131).

11714921 is an equidigital number, since it uses as much as digits as its factorization.

11714921 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 689130.

The product of its digits is 504, while the sum is 26.

The square root of 11714921 is about 3422.7066774703. The cubic root of 11714921 is about 227.1153327256.

The spelling of 11714921 in words is "eleven million, seven hundred fourteen thousand, nine hundred twenty-one".